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Finding the Fourth Proportional to 68,630.99, 94,712.37 and 38,415.56

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Solution

The fourth proportional to 68,630.99, 94,712.37 and 38,415.56 is: 53,014.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,630.99 : 94,712.37 = 38,415.56 : x
  2. Step 2: Convert to fraction form
    68,630.99/94,712.37 = 38,415.56/x
  3. Step 3: Cross multiply
    68,630.99x = 94,712.37 × 38,415.56
  4. Step 4: Simplify right side
    68,630.99x = 3,638,428,732.48
  5. Step 5: Solve for x
    x = 3,638,428,732.48/68,630.99
  6. Step 6: Final answer
    x = 53,014.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.